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Large area scintillation detector for dosimetric stand with improved light collection

Machaj B., Mirowicz J., Kowalska E.

Nukleonika

2011

Vol. 56, No. 4

317-321

In order to improve scintillation light collection from a thin plastic scintillator, the shape of a light reflector, and a new concept of extraction scintillation light trapped inside the scintillator were investigated. The trapped scintillation light is extracted from the scintillator by cutting the scintillator into two pieces with the edges machined at an angle of 45 centi grade and polished. Considerable improvement of detection efficiency can be achieved when the extracted and the escape scintillation light are collected together. Prototype of such a scintillation probe was constructed and investigated.